| Share | Phrase |
|---|
| 34.18% | uninterrupted [time periodicity] extend |
| 12.06% | uninterrupted [time periodicity] surface |
| 11.90% | uninterrupted [time periodicity] flow |
| 9.32% | uninterrupted [time periodicity] crest |
| 9.26% | uninterrupted [time periodicity] wall |
| 8.79% | uninterrupted [time periodicity] sequence |
| 8.11% | uninterrupted [time periodicity] path |
| 6.34% | uninterrupted [time periodicity] supply |